$ git clone -n https://src.fedoraproject.org/rpms/rust-csv.git /var/lib/mock/f40-build-2091918-50253/root/chroot_tmpdir/scmroot/rust-csv
Cloning into '/var/lib/mock/f40-build-2091918-50253/root/chroot_tmpdir/scmroot/rust-csv'...
$ git fetch origin f9b8632187d10f25b88723688946357042a38f93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-csv
 * [new ref]         f9b8632187d10f25b88723688946357042a38f93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9b8632 Update to version 1.3.0; Fixes RHBZ#2241925